A 4-layer PCB with a solid ground plane and a separate layer for the power traces is recommended. Keep the power traces short and wide, and use vias to connect the power planes to the components. Refer to the TI application note 'PCB Layout Guidelines for Switching Regulators' for more information.
Choose an inductor with a high saturation current rating, low DC resistance, and a suitable inductance value (e.g., 2.2 μH to 4.7 μH). Consider the inductor's physical size, core material, and operating frequency. TI's 'Inductor Selection Guide' can help with the selection process.
The BQ25606RGER can handle input voltages up to 18 V, but it's recommended to keep the input voltage below 15 V to ensure reliable operation and to prevent overheating.
Use the FB pin to set the output voltage. Connect a resistive divider from the output voltage to the FB pin, and calculate the resistor values using the formula provided in the datasheet. For example, to set the output voltage to 5 V, use R1 = 10 kΩ and R2 = 2.2 kΩ.
The EN (enable) pin is used to turn the converter on or off. Connect the EN pin to a logic signal (e.g., from a microcontroller) to enable or disable the converter. When EN is high, the converter is enabled; when EN is low, the converter is disabled.
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
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